Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 1525 more...
- ItemBB015932 - Northern Pacific Engineering Drawing: Shop Plan - Strut/Post, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015933 - Northern Pacific Engineering Drawing: Shop Plan - Girder/Diagonal, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015934 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Stringer, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015935 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Bents, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015936 - Northern Pacific Engineering Drawing: Shop Plan - Stringer/Brace, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015937 - Northern Pacific Engineering Drawing: Shop Plan - Stiffener/Diaphragm, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015938 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015939 - Northern Pacific Engineering Drawing: Shop Plan - Section Girder, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015940 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- 6194 more...